The National Conference on Tobacco or Health (NCTOH) is a training that assembles a vast array of leaders from large and small entities to create one voice on behalf of public health against tobacco-caused disease and death. The conference promotes open dialogue among a collaborative audience including tobacco control researchers, advocates and public health officials from local, state and national agencies; smoking cessation experts; health policy advisors; legislative representatives and tobacco control leaders from across the United States. As the premier national conference, NCTOH is dedicated to national collaboration on tobacco control and synergy from the field for a collective movement with a national scope and, more importantly, local impact.